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July 31, 2015

Homework Help: statistics

Posted by American Public University on Saturday, May 4, 2013 at 4:47pm.

the percent defective for parts produced by a manufacturing process is targeted at 4%. The process is monitored daily by taking samples of sizes n=160 units. Suppose that today's sample contains 14 defectives. How many units would have to be sampled to be 95% confident that you can estimate the fraction of defective parts within 2% (using the information from today's sample-that is using the result that P=0.00875)?

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